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Scottish mathmatician invented a set of rods, that become known as Nappier's Bones, that could be used to preform complex calculations.
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Blaise Pascal invented a simple calculator that could add up to 8 digits
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Joseph-Marie Jacquard invented a weaving loom of punch cards that could be used to replicate designs.
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Charles Babbage invented the first machine that used an input-decision-output idea. This machine was called the "difference machine." It was a glorified adding and multiplication machine.
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In 1890 Herman Hollerith creates a punched card calculator in rder to count the U.S. census. Compared to 1880's census which took 7 years to count, the punch card calculator dropped the timeto only 6 weeks!
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William Burroughs built a mechanical calculator that rivaled the Analytical Engine.
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In 1906 Lee De Forest invented the electronic tube. This vacuum tube made the development of electronic computers possible.
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in 1939, electronic machines were made for the puropse of emcrypting German codes during World War Two.
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In 1943, Howard H Aiken developed the first programm controlled calculator.It was operated by punch cards of paper tape.
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At Bell Laboratories, William Shockley, Walter Brattain, and John Bardeen invented the first transistor. Each Transistor could do the work of several electronic tubes and was smaller than a postage stamp. Now computers could be cheaper, use less electricity and heat, and be more compact.
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1946-ENIAC: capable of 100,000 calculations per secind
1949-EDVAC: first computer to use magnetic tape for storage
1951-UNIVAC 1: first computer made in numbers for buisness -
In 1958, computing was changed forever by the invention of the intergrated circuit. That lead to the invention of the modern day computer chip which does the work of millions of transistors.
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grace Hopper developed a high level language compiler. her work is extremley important in the development of computers
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1957- FORTRAN
1959-COBOL (also invernted by Grace Hopper)
1960-ALGOL
1961-APL
1965-BASIC
1967-PASCAL
1968-LOGO
1972-C
